FLANGES

Flanges

Dingxiang Feida Industrial & Forging Co, Ltd. Design, manufacture and supply piping quipment located in Taiyuan city, Shanxi Province of P.R. Of China. Our product is well-known in China and aboard to Oil and Gas piping plants, Refineries, Petrochemical industry, Oil field piping, Power plants, Chemicals, Fertilizers, Iron, Marine Industry, Thermal Power, Mining, Offshore, Oil and Gas, Nuclear Power, Petrochemicals, Refineries, Pipelines, Steel Production, Shipbuilding, Storage & Distribution, Suger Plant, Construction.

Flange types

Welding Neck, Slip-On, Blind, Threaded, Socket Weld, Lap Joint, Swivel , Long Welding Neck, Orifice Flange, Spectacle Blind,
Backing Falnges, Spectacle Blinds, Ring & Blind Spade, Figure8, Orifice Flange, Anchor Flange

Designated Standard

ASME B16.5
ASME B16.47 A
ASME B16.47 B
ASME B16.36
ASME B16.48
API 605
API 6A

MSS SP 44
EN1092-1, EN1759-1
DIN2630 DIN2631 DIN2632 DIN2633 DIN2634
DIN2635 DIN2636 DIN2637 DIN2638
BS1560-3.1-1989 BS4504-3.1
AFNOR NF E29-200-1
ISO7005-1

Material

+ Carbon Steel

-A105, A105N, A105 Galvanized, ST37, A266 GR.1 to 4(N),

+ Alloy Steel

-A350 LF 1 to LF6 , A516 Gr. 55 to 70, A694 F52 - F70

+ Stainless Steel

-A182 F304/L , (Dual Grade) , A182 F316/L, (Dual Grade) A182 F317/L, A182 F321(H)

+ Nickel Alloys

ASTM / ASME SB 564 / 160 / 472
UNS 2200 (NICKEL 200), UNS 4400 (MONEL 400),
UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600),
UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625),
UNS 10276 (HASTELLOY C 276), UNS 2201 (NICKEL 201)
(ALLOY 20 / 20 CB 3) , SA 610 ( UNS30600 ),

+ Chromoly

SA182, F1, F5, F5a, F9, F91, F11A,F11B, F12, F22, A420 S31803

STAINLESS STEEL

ASTM A182 304, 304L, 304H, 309, 310, 310S, 316, 316L, 317, 317L, 321, 321H, 347, 347H, 446, 904L, DUAL GRADE)

CARBON STEEL

ASTM A105, ASTM A350 (LF1, LF2, LF3), ASTM A694 (Gr. F42, F46, F56, F52, F60, F65, F70).

ALLOY STEEL

ASTM A182 Gr. F5, F9, F11, F12, F22, F91

DUPLEX & SUPER DUPLEX STEEL

ASTM A182 Gr. F51, F52, F53, F54, F55, F57, F59, F60, F61, UNS S31803, S32205, S32760, S32750

HIGH NICKEL ALLOY

Nickel 200, 201, Monel 400, K500, Incoloy 800, 825, Inconel 600, 601, 625, Hastelloy C276, C22, Alloy 20, Titanium (Grade 2 & 5), Cupro-Nickel 70/30, 90/10.

FORGINGS

Forgings

Steel forging is a fuzzy concept referring forging technology in steel. We can define steel forging in different forging processes: Open die steel forging and closed die steel forging. Open die steel forging means steel forging parts made by open die forging, which is more applicated in large steel parts. However,for small precision parts,closed die forging is the right option.

Types

Stainless steel forging: Compared with carbon and low alloy steels, stainless steel is a special steel due to its high alloy content. As an adherent chromium-oxide film is formed on the surface of steel, so stainless steel has good corrosion resistance. Besides,such material also has fairly high strength and good ductility. For the characteristics of corrosion resistance, stainless steel forgings are well-suited to valves, shafts, equipment, food industry, ect.

Carbon & Alloy steel forgings: Unlike stainless steel forgings, carbon & alloy steel forging components will be much cheaper. Such materials are mostly considered for application.

ANCHOR FLANGES

Anchor Flanges

Anchor Flanges are used to anchor pipe, often when crossing streams or ravines.
They are a double hub piece of steel that is put into a special holder that is part of a piling to supports the pipeline and resist loading.
The anchor structure is welded to the pipe and usually embedded in concrete.
Anchor flanges actually contain axial thermal expansion - that is axial thrust in pipelines.
The assumed design temperature change is 90 degrees Fahrenheit.
The thrust is transferred to the anchor foundation -in which the anchor is mounted.
These flanges are used at crossings and points with changes in pipeline direction.

Technical:

The technical specifications are according to :
ASTM A694
API 5L Specification for Line Pipes
ASME B31.1
ASME B31.8 Gas Transmission and Distribution Piping System
ASME B36.10
MSS-SP-44 - Specification for Large Diameter Flanges
ASME B16.25 - Butt Welding Ends
ANSI B16.5 - Pipe Flanges and Flange Fitting Standard
ANSI B16.47A
ANSI B16.47B.
ASME SEC.VIII , DIV. 1. Boiler and Pressure Vessel Standard

to enable us design and quote, need below information:

- Pipe Line Size - (Outside Diameter of Pipe)
- Pipe Line Wall Thickness
- Min. and Max. Operating Temperature
- Installation Temperature
- Design pressure ( or Working Pressure)
- Max. bearing stress of Concrete
- Anchor Flange Material
- Pipe Material